Thermostatic Switches

ThermThermostats are used in temperature control systems regulating air or liquids and can be used in both commercial and domestic applications. The two main types are capillary and bimetallic thermostats.
RS Components offer a range of thermostats such as enclosure thermostats, mechanical HVAC thermostats, digital and programmable HVAC thermostats, digital and smart thermostats with Wi-Fi.

What Does a Thermostat Do?
It regulates the temperature of a liquid in a tank, or in conjuction with air conditioning units to monitor the air in a room/system. The thermostat simply switches the system off or on whenever necessary so that a constant temperature can be maintained. At home room thermostats switches on the heating when the room is cold and once the temperature has reached the level set, the programmable thermostat switches the heating off.

Capillary Thermostats
These consist of a sensor, capillary tube, diaphragms, a probe and an expansion medium. When the liquid heats up and expands, the temperature sensor is heated allowing for it to be converted into displacement in the diaphragm. The contacts within the closed circuit system can be opened or closed by this displacement due to pressure.
Due to their accuracy and easy installation, they are widely used to control air and water temperatures and are suitable for use in storage heaters, hot tanks and boilers to control hot water.

Bimetallic Thermostats
These consist of a strip of two different metals with different coefficients of linear expansion. The bimetallic strip acts as an electric contact breaker in an electric heating circuit. When the desired temperature is reached, the circuit is broken.
The strips of metal are bolted together. A bridge is then created in the electrical circuit and is connected to your heating system. The strip carries electricity through the circuit when the heating is on. When the strips get hot, both of the metals expand but one more so than the other. The hottest metal bends and opens the circuit. Once the circuit is open the electricity switches off and the heating cuts out.
Once the heating is off, the room cools down which in turn cools down the strip of metal and allows it to go back to its original shape. When it cools, the metal goes back into the circuit and switches the heating back on as the electricity flow has been re-established. The metal strip takes a while to expand and contract so the heating is not constantly switching on and off every few seconds.

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Nombre de résultats par page
Description Prix Minimum Temperature Maximum Temperature Opening Temperature Closing Temperature Thermostat Type Switch Configuration Contact Rating Contact Voltage Rating Terminal Type Mounting Type Reset Type Switch Function
N° de stock RS 228-2614
Référence fabricant2455RM 9082-472 L150
MarqueHoneywell
7,50 €
Each
Unité
+50°C +150°C +150°C - Bi-Metallic NC 10 A 250 V ac Solder Tab - - -
N° de stock RS 733-4723
MarqueRS PRO
27,79 €
Each
Unité
0°C 90°C - - Capillary SPDT 16 A 250 V ac - Panel Mount Automatic -
N° de stock RS 339-724A
Référence fabricant2455R 82-235 L150C
MarqueHoneywell
3,455 €
Each (In a Pack of 25)
Unité
- - +150°C - - NC 10 A 250 V ac Solder Tag - - -
N° de stock RS 339-724
Référence fabricant2455R 82-235 L150C
MarqueHoneywell
4,09 €
Each
Unité
- - +150°C - Bi-Metallic NC 10 A 250 V ac Solder Tab - - -
N° de stock RS 494-0867
Référence fabricant2455RC-90820388
MarqueHoneywell
5,35 €
Each
Unité
0°C +260°C +160°C - Bi-Metallic SPST NC 15 A 120 → 250 V ac Quick Connect - - -
N° de stock RS 228-2636
Référence fabricant2455R 9082-462 L50C
MarqueHoneywell
4,00 €
Each
Unité
- - +50°C - Bi-Metallic NC 10 A 250 V ac Solder Tab - - -
N° de stock RS 229-5907
Référence fabricant2455RP 9100-433 L50C
MarqueHoneywell
3,40 €
Each
Unité
0°C +186°C +50°C +35°C Bi-Metallic NC 10 A 250 V ac Solder Tab - - -
N° de stock RS 339-308A
Référence fabricant2455R 82-195 L70C
MarqueHoneywell
3,131 €
Each (In a Pack of 25)
Unité
0°C +150°C +70°C +55°C - SPST 15 A 240 V ac Quick Connect - - -
N° de stock RS 733-4710
MarqueRS PRO
28,71 €
Each
Unité
0°C +120°C - - Capillary SPDT 15 A 250 V ac - Panel Mount - -
N° de stock RS 339-308
Référence fabricant2455R 82-195 L70C
MarqueHoneywell
4,06 €
Each
Unité
0°C +150°C +70°C +55°C Bi-Metallic SPST NC 15 A 240 V ac Quick Connect - - Open On Rise
N° de stock RS 331-540
Référence fabricant2455R 82-713 F60C
MarqueHoneywell
3,72 €
Each
Unité
- - +45°C +60°C Bi-Metallic NO 15 A 240 V ac Quick Connect - - -
N° de stock RS 229-5890
Référence fabricant2455RP 9100-434 L60C
MarqueHoneywell
3,36 €
Each
Unité
0°C +186°C +60°C +45°C Bi-Metallic NC 10 A 250 V ac Solder Tab - - -
N° de stock RS 228-2513
Référence fabricant2455RM 9082-468 L70C
MarqueHoneywell
6,82 €
Each
Unité
0°C +150°C +70°C - Bi-Metallic - 10 A - Quick Connect - - -
N° de stock RS 357-7519
Référence fabricant602021/0001-025-000-25-1000-40-10-00-00-000-00-6
MarqueJumo
44,99 €
Each
Unité
0°C +100°C - - Capillary - 16 A @ 230 230 V ac Solder Tab - - -
N° de stock RS 494-0873
Référence fabricant2455RC-90820389
MarqueHoneywell
5,47 €
Each
Unité
0°C +260°C +180°C - Bi-Metallic - 15 A - Quick Connect - - -
N° de stock RS 467-028
Référence fabricant603070/0001-6-016-000-25-0-00-15-00-00-000-00-17
MarqueJumo
77,90 €
Each
Unité
-10°C +40°C - - Capillary - - - - - - -
N° de stock RS 229-5834
Référence fabricant2455RP 9100-440 L125C
MarqueHoneywell
3,38 €
Each
Unité
0°C +186°C +125°C +110°C Bi-Metallic NC 10 A 250 V ac Solder Tab - - -
N° de stock RS 733-4729
MarqueRS PRO
28,33 €
Each
Unité
0°C +300°C - - Adjustable Capillary SPDT 16 A 250 V ac - Panel Mount Manual -
N° de stock RS 339-314
Référence fabricant2455R 82-191 L100C
MarqueHoneywell
4,09 €
Each
Unité
- - +100°C - Bi-Metallic NC 10 A 250 V ac Quick Connect - - -
N° de stock RS 339-314A
Référence fabricant2455R 82-191 L100C
MarqueHoneywell
3,455 €
Each (In a Pack of 25)
Unité
- - +100°C - - NC 10 A 250 V ac Quick Connect - - -